scholarly journals Integration of Local Chan Vase Along with Optimization Techniques for Segmentation

2020 ◽  
Vol 5 (2) ◽  
pp. 60-69
Author(s):  
Hari Jyothula ◽  
S. Koteswara Rao ◽  
V. Valli Kumari
Keyword(s):  
Optimization Techniques ◽  
Intensity Inhomogeneity ◽  
Two Dimensional ◽  
The Way

image is a two dimensional capacity f(x, y). The way toward dividing an image into numerous parts or questions is named as Segmentation. There are two noteworthy deterrents in sectioning an image i.e., Intensity Inhomogeneity and Noise. As a result of these challenges, precise division comes about can't be acquired. This paper presents Local Chan-Vese (LCV) alongside some enhancement methods for minimization of vitality capacities to defeat power inhomogeneity and commotion. By consolidating this implanted approach, the images with force inhomogeneity can be effectively divided.

The Application of Genetic Algorithms to the Evaluation of Software Reliability

2010 ◽  
pp. 29-49
Author(s):  
Angel Fernando Kuri-Morales
Keyword(s):  
Genetic Algorithms ◽  
Software Reliability ◽  
Optimization Techniques ◽  
Software System ◽  
Adequate Measure ◽  
Practical Tool ◽  
Definition Of ◽  
Modern Optimization ◽  
The Way

The evaluation of software reliability depends on a) The definition of an adequate measure of correctness and b) A practical tool that allows such measurement. Once the proper metric has been defined it is needed to estimate whether a given software system reaches its optimum value or how far away this software is from it. Typically, the choice of a given metric is limited by the ability to optimize it: mathematical considerations traditionally curtail such choice. However, modern optimization techniques (such as Genetic Algorithms [GAs]) do not exhibit the limitations of classical methods and, therefore, do not limit such choice. In this work the authors describe GAs, the typical limitations for measurement of software reliability (MSR) and the way GAs may help to overcome them.

Painting, aesthetics of

2018 ◽  
Author(s):  
Robert Hopkins
Keyword(s):  
Picture Plane ◽  
Essential Elements ◽  
Two Dimensional ◽  
Art Forms ◽  
The Aesthetic ◽  
Aesthetic Values ◽  
Dimensional Picture ◽  
Do So ◽  
The Way

Why care about painting as an art? Does it offer to engage our aesthetic interest in ways that other art forms do not, or does it merely reproduce the aesthetic satisfactions they provide? Most paintings involve both marks on a surface, and something represented by those marks. Some attempts to say what is distinctive about painting concentrate on the former feature, understanding the art as an exploration of the two-dimensional picture plane. Others concentrate on the representational aspect, seeking to find something special about the things painting can represent, or the way in which it achieves this. The most promising approaches acknowledge both aspects, and do so as essential elements in the experiencewe have of painting. One such approach turns on the idea that the configurational aspect ‘inflects’ the representational, so that what we see in the picture itself somehow involves the marks from which the painting is composed. Another sees painting as offering aesthetic values found elsewhere, but in a distinctive form. Taking seriously the idea of our experience of painting also helps us to say something about a set of paintings we are otherwise in danger of ignoring - abstract works.

Painting, aesthetics of

2018 ◽  
Author(s):  
Robert Hopkins
Keyword(s):  
Picture Plane ◽  
Essential Elements ◽  
Two Dimensional ◽  
Art Forms ◽  
The Aesthetic ◽  
Aesthetic Values ◽  
Dimensional Picture ◽  
The Way

Why care about painting as an art? Does it offer to engage our aesthetic interest in ways that other art forms do not, or does it merely reproduce the aesthetic satisfactions they provide? Most paintings involve both marks on a surface, and something represented by those marks. Some attempts to say what is distinctive about painting concentrate on the former feature, understanding the art as an exploration of the two-dimensional picture plane. Others concentrate on the representational aspect, seeking to find something special about the things painting can represent, or the way in which it achieves this. The most promising approach acknowledges both aspects, and does so as essential elements in the experience we have of painting. If successful, this allows us to see painting as offering aesthetic values found elsewhere, but in a distinctive form. It also helps us to say something about a set of paintings we are otherwise in danger of ignoring – abstract works.

COMMON DYNAMICAL FEATURES OF PERIODICALLY DRIVEN STRICTLY DISSIPATIVE OSCILLATORS

1993 ◽  
Vol 03 (03) ◽  
pp. 703-715 ◽  
Author(s):  
ULRICH PARLITZ
Keyword(s):  
Periodic Orbits ◽  
Parameter Space ◽  
Nonlinear Oscillators ◽  
Two Dimensional ◽  
Topological Properties ◽  
Basic Pattern ◽  
Bifurcation Structure ◽  
Periodically Driven ◽  
Dynamical Features ◽  
The Way

Periodically driven strictly dissipative nonlinear oscillators in general possess a recurring bifurcation structure in parameter space. It consists of slightly modified versions of a basic pattern of bifurcation curves that was found to be essentially the same for many different oscillators. The periodic orbits involved in these bifurcation scenarios also possess common topological properties characterized in terms of their torsion numbers and the way they are connected when parameters are varied. In this paper, this typical bifurcation structure of periodically driven strictly dissipative oscillators will be presented and discussed in terms of examples from Duffing’s equation. Furthermore a family of two-dimensional maps is given that models (strictly) dissipative oscillators and shows essential features of the bifurcation pattern found.

Arithmetical theory of Anosov diffeomorphisms

1987 ◽  
Vol 413 (1844) ◽  
pp. 97-107 ◽  
Keyword(s):  
Nineteenth Century ◽  
Periodic Orbits ◽  
Algebraic Number ◽  
Number Fields ◽  
Dynamical Behaviour ◽  
Two Dimensional ◽  
Dimensional Torus ◽  
Algebraic Number Fields ◽  
Anosov Diffeomorphisms ◽  
The Way

Nineteenth century arithmetic is used to study periodic orbits of Anosov diffeomorphisms of the two-dimensional torus. We find that the period of the orbits, as well as their dynamical behaviour, are intimately related to the way ideals factorize in algebraic number fields.

Tailoring of Two-Dimensional Band-Gap Materials for Broadband Frequency Isolation

2007 ◽  
Author(s):  
Mahmoud I. Hussein ◽  
Karim Hamza ◽  
Gregory M. Hulbert ◽  
Kazuhiro Saitou
Keyword(s):  
Band Gap ◽  
Vibration Isolation ◽  
Optimization Techniques ◽  
Band Gaps ◽  
Two Dimensional ◽  
Frequency Bandwidth ◽  
Periodic Composite ◽  
Unit Cells ◽  
Periodic Materials ◽  
Broadband Frequency

The spatial distribution of material phases within a periodic composite can be engineered to produce band gaps in its frequency spectrum. Applications for such composite materials include vibration and sound isolation. Previous research focused on utilizing topology optimization techniques to design two-dimensional periodic materials with a maximized band gap around a particular frequency or between two particular dispersion branches. While sizable band gaps can be realized, the possibility remains that the frequency bandwidth of the load that is to be isolated might significantly exceed the size of the band gap. In this paper, genetic algorithms are used to design squared bi-material unit cells with a maximized sum of relative band-gap widths over a prescribed frequency range of interest. The optimized unit cells therefore exhibit broadband frequency isolation characteristics. The effects of the ratios of contrasting material properties are also studied. The designed cells are subsequently used, with varying levels of material damping, to form a finite vibration isolation structure, which is subjected to broadband loading conditions. Excellent isolation properties of the synthesized material are demonstrated for this structure.

Wayfaring Images

2018 ◽  
Author(s):  
Nathalie Collé-Bak
Keyword(s):  
Three Dimensional ◽  
Photographic Film ◽  
Two Dimensional ◽  
Book Market ◽  
Pilgrim's Progress ◽  
Cultural Boundaries ◽  
Three Dimensional Images ◽  
The Way

The Pilgrim’s Progress (1678; 1684) has been illustrated in many different forms and media, from its early days on the book market up until today. For over the last three centuries, John Bunyan’s allegory has inspired illustrators in numerous and varied ways, the images born of the text having materialized on book pages as well as on individual sheets, but also on canvas, photographic film, glass panes, and walls. Two-dimensional creations have also led the way to three-dimensional images, exhibited or performed in a variety of places and for a whole range of publics. This chapter contends that these sundry ‘illustrations’, by professional as well as amateur artists, have secured the diffusion and the popularity of the text through its temporal and geographical journeys, and across cultural boundaries.

Unsettling Transcription Through “Event Memory”: Problem and Possibility in Exploring the Phenomenological Question

2018 ◽  
Vol 26 (5) ◽  
pp. 447-453
Author(s):  
Meredith N. Sinclair
Keyword(s):  
Lived Experience ◽  
Hermeneutic Phenomenology ◽  
Qualitative Inquiry ◽  
Event Memory ◽  
Two Dimensional ◽  
Memory Problem ◽  
Van Manen ◽  
Truth Claims ◽  
The Way

This article works to unsettle the use of transcription in qualitative inquiry by troubling the truth claims of transcribed text. Building on the hermeneutic phenomenology of Van Manen, it explores the way the researcher might “write through” transcribed text to return to the two-dimensional text space a more honest reading of lived experience. It also draws on Deleuze and Guattari’s rhizomatic thinking to explore the “gruesome multiplicities” present in reality—and the ways we might honor that multiplicity in research texts. Excerpts from an inquiry into the phenomenon of “reading as not a reader” are used to illustrate.

Automatic fitting of gravity anomalies using two‐dimensional models

Geophysics ◽  
1984 ◽  
Vol 49 (3) ◽  
pp. 300-302
Author(s):  
Antonio Montalvo
Keyword(s):  
Gravity Anomalies ◽  
Convergence Criterion ◽  
Two Dimensional ◽  
Trial And Error ◽  
Initial Model ◽  
Automatic Construction ◽  
Frequency Domains ◽  
Gravity Measurements ◽  
Automatic Fitting ◽  
The Way

During the last two decades several methods have been reported in the literature (Corbató, 1965; Gerard and Debeglia, 1975; Bhattacharyya, 1978) for the automatic construction of models that fit observed magnetic and gravity measurements by using either space or frequency domains. Whichever approach is employed, the methods proceed as follows. An initial model is proposed and a sequence of corrections is generated in order to improve the fit between the observed and calculated anomalies. These corrections are successively applied to the initial model until a certain convergence criterion is satisfied. The above corresponds to the well‐known trial‐and‐error procedure; the relative advantages of one method over another arise from the way in which the corrections are generated.

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